In the video, Trump can be seen wandering around on stage and looking a little confused. And this isn't the first time.

2. He couldn't find his limo while getting off a plane.

Earlier this week the president had to be redirected back to his limo after walking away from it while getting off a plane. Conspiracy theorists are saying this behavior is evidence of sundowning, a symptom of Alzheimer's disease also known as “late-day confusion.”

What does sundowning mean? People who are suffering from Alzheimer's tend to get more confused and agitated in the late afternoon and evening.

"The experts noted clear changes from Trump’s unscripted answers 30 years ago to those in 2017, in some cases stark enough to raise questions about his brain health. . . John Montgomery, a psychologist in New York City and adjunct professor at New York University, said “it’s hard to say definitively without rigorous testing” of Trump’s speaking patterns, “but I think it’s pretty safe to say that Trump has had significant cognitive decline over the years.”

3. He forgot to shake Netanyahu's hand during his trip to Israel and wandered off.

That decline, conspiracy theorists say, is evident in instances like when Trump forgot to shake hands with Prime Minister Benjamin Netanyahu during a visit to Israel.

As you can see in the video, Trump walks off camera despite Netanyahu reaching his hand out and attempting to pull the president back. It's not until one of his secret service agents points him back on stage that he starts to get back with it. But even then, he looks confused.

TRUMP: I don’t want to use, I don’t want to start the process of nuclear. Remember the one thing that everybody has said, I’m a counterpuncher. Rubio hit me. Bush hit me. When I said low energy, he’s a low-energy individual, he hit me first. I spent, by the way, he spent 18 million dollars’ worth of negative ads on me. That’s putting [MUFFLED]…

RYAN: This is about ISIS. You would not use a tactical nuclear weapon against ISIS?

TRUMP: I’ll tell you one thing, this is a very good-looking group of people here. Could I just go around so I know who the hell I’m talking to?

And if that's not enough, check out the following evidence.

4. He walked out of a ceremony before forgetting to sign an executive order.

5. He didn't realize Rudy Giuliani was sitting directly in front of him.

6. He confused Iraq with Syria in an interview.

7. Conspiracy theorists are saying that all of his other disconnected comments that appear to be signs of dementia as well.

A section of the amendment says the vice president to assume powers if either the majority of the cabinet or such other body as Congress finds that the President is unable to discharge the powers and duties of office.